Fourteen Weeks in Descriptive Astronomy |
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Page 79
... motion again , and at some point near Q the planet must have appeared without motion . After this , it will continue direct until the earth has completed a large portion of her orbit , as we shall easily see by imagining various ...
... motion again , and at some point near Q the planet must have appeared without motion . After this , it will continue direct until the earth has completed a large portion of her orbit , as we shall easily see by imagining various ...
Page 101
... motion to the stars , think- ing those on the west which it passes over and hides to have sunk below it or set , and imagining those on the east it has dropped below to have moved above it or risen . So , also , the horizon is depressed ...
... motion to the stars , think- ing those on the west which it passes over and hides to have sunk below it or set , and imagining those on the east it has dropped below to have moved above it or risen . So , also , the horizon is depressed ...
Page 316
... motion ? 22. What was the remark of Alphonso ? When did astron- omy cease to be cultivated as a science ? In what century ? Why did Cæsar import an astronomer ? Why did he attempt to revise the Calendar ? What change did he make ( p ...
... motion ? 22. What was the remark of Alphonso ? When did astron- omy cease to be cultivated as a science ? In what century ? Why did Cæsar import an astronomer ? Why did he attempt to revise the Calendar ? What change did he make ( p ...
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Common terms and phrases
ancients angle aphelion appear astronomers atmosphere axis bright brilliant called Capricornus Cassiopeia Celestial Sphere centre circle color comet conjunction constellation Cor Caroli dark density diameter disk earth east ecliptic equal equator equinoctial figure fixed stars full moon globe heat heavenly bodies heavens Hercules Herschel horizon inclined inferior inferior conjunction inferior planet Jupiter latitude length light longitude luminous lunar magnitude Mars mean distance measured Mercury meridian meteors miles moon moon's motion move naked eye nearly nebula Neptune night node north pole obliquity observer orbit parallax pass path penumbra perihelion Perseus planet polar position rays revolve Right Ascension ring rotation satellites Saturn seasons seen shadow shine side sidereal sidereal day solar system space spots summer sun's superior planet supposed surface synodic revolution tance Taurus telescope theory tion Uranus Ursa Major varies velocity Venus vernal equinox visible zenith zodiac